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No pressure in brakes after bleeding

Tiny
DIRTBIKERDAVE
  • MEMBER
  • 2000 HONDA CIVIC
  • 4 CYL
  • FWD
  • MANUAL
  • 460,000 MILES
I capped the rear brakes at p.C. Valve (derby car) then replaced the brake line from p.C. Valve to front driver caliper, bled the system and can only get pressure on pass. Side front, the driver side front just gets air and a little bit of fluid come out here and there but mostly air, then took the bleed screw out of caliper and put it in p.C. Valve and tried bleeding straight from valve, still no pressure straight from the valve, im confused as to what it could be. Can I run two lines from the master cylinder to each front brake? Thanks, dave.
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Saturday, September 12th, 2015 AT 6:17 PM

1 Reply

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
This is going to sound harsh but isn't meant to: Why would you cap the rears instead of installing a variable proportioning valve to control the amount of rear braking? I'm not terribly familiar with rallye rules, but is that even legal? I know in the racing series I used to be in, we had to have rear brakes.

Running two lines from the MC wouldn't work because the MC delivers different amounts of hydraulic pressure to the two circuits and you'd get uneven braking. You might have damaged the PC valve doing this, but this is something I've never seen, even in racing.
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Tuesday, March 16th, 2021 AT 11:44 AM

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